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Hyundai Genesis Coupe 3.8L MFI Control Wiring Diagram SD313-9 (G6DA Lambda)

Wiring diagram of a 3.8L MFI control system showing the ECU, relays, valves and color-coded circuits.

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This document is page SD313-9 of a Hyundai wiring diagram set covering the MFI (Multiport Fuel Injection) Control System for the G6DA-GSL 3.8L Lambda engine. It shows the power distribution from the E/R (engine room) junction box RH, with the ECU-1 10A and ECU 30A fuses feeding the engine control relay (connector CLG99), which in turn feeds the Injector 15A, Ignition Coil 20A, SNSR-1 10A, and SNSR-2 15A fuses (cross-referenced to sheets SD313-10, -11, -12). The diagram traces circuits through joint connectors JCL83 and JCL84 to the canister close valve (F12), purge control solenoid valve (CLG21), immobilizer module (M36), TCM memory power (CLG-ZF), and four CVVT oil control valves — Bank 1 and Bank 2, intake (CLG98-1/CLG98-2) and exhaust (CLG05-1/CLG05-2). ECM pin assignments are given along the bottom: pins 77/52 memory power, 94 engine control relay control, 100 relay 'ON' input, 66 PCSV, 86 CCV, and pins 94/96/95/93 for the CVVT valves. Wire colors (R, P, B, Br, G, L, W, Gr) and photo reference numbers for connector locations are included throughout.

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Frequently asked questions

What fuses power the MFI control system on the 3.8L Lambda engine?
The ECU-1 10A and ECU 30A fuses (hot at all times, in the E/R junction box RH) feed the engine control relay, which supplies the Injector 15A, IGN Coil 20A, SNSR-1 10A, and SNSR-2 15A fuses.
Which ECM pins control the CVVT oil control valves?
Per the diagram: pin 94 for Bank 1 CVVT exhaust, pin 96 for Bank 1 intake, pin 95 for Bank 2 intake, and pin 93 (CLG-B) for Bank 2 CVVT exhaust.
What connectors are used for the oil control valves?
CLG05-1 (Bank 1 exhaust OCV), CLG98-1 (Bank 1 intake OCV), CLG98-2 (Bank 2 intake OCV), and CLG05-2 (Bank 2 exhaust OCV).
Where does the purge control solenoid valve connect to the ECM?
The purge control solenoid valve (connector CLG21, Photo 29) connects to ECM pin 66 (CLG-B), labeled PCSV.
What sheet references cover the injector, coil, and sensor fuses?
Injector 15A is on SD313-11, IGN Coil 20A on SD313-10, and SNSR-1 10A on SD313-12.

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